omni: add scripts to merge pixel specific repos

Change-Id: I01743345ac71b0004e9a065c1e137340160e67a8
diff --git a/utils/pixel-forked-list b/utils/pixel-forked-list
new file mode 100644
index 0000000..4910ebe
--- /dev/null
+++ b/utils/pixel-forked-list
@@ -0,0 +1,5 @@
+device/google/gs101
+device/google/gs101-sepolicy
+device/google/gs-common
+device/google/raviole
+hardware/google/pixel-sepolicy